What's Changed

• Fix address-instability in MultiSegmentArena by storing *Segment and validating via (id, arena storage) by @saikocat in #607

New Contributors

• @saikocat made their first contribution in #607

Full Changelog: v3.1.0-alpha.1...v3.1.0-alpha.2

What's Changed

• rpc: Start fixing TestPromiseOrdering by @matheusd in #579
• message: Fix benchmark read reuse test by @matheusd in #580
• bbr: Fix test flakes by @matheusd in #578
• Add workarounds to TestPromiseOrder by @matheusd in #582
• integration: Benchmark with/without release by @matheusd in #585
• transport: Fix double release instances of {in,out}goingMsg by @matheusd in #583
• CI: Reduce number of test runs of rpc by @matheusd in #584
• Some test and general fixes by @matheusd in #588
• Allow using the packed transport in rpc.Serve by @fpetkovski in #590
• capnp: Refactor Arenas by @matheusd in #586
• Simplify TestCanonicalize by @matheusd in #589
• chore: bump go version in CI to 1.23 by @cmackenzie1 in #587
• 3PH part 1: Prepare for 3PH support by @Semisol in #594
• Provide an option to specify base context for RPC connection by @homier in #595
• multi: Make NewMessage() usable for creating messages for reading by @matheusd in #591
• Fix failing tests and test network by @Semisol in #596
• Add a test for all-zero stream decoding by @Semisol in #599
• MultiSegmentArena: Fix release back into bufferpool by @matheusd in #598
• bufferpool: Improve performance by @matheusd in #603
• Test RPC server external context cancellation by @homier in #601
• Fix broken AnswerQueue behavior with chained pipeline calls by @ObsidianMinor in #605

New Contributors

• @fpetkovski made their first contribution in #590
• @Semisol made their first contribution in #594
• @homier made their first contribution in #595
• @ObsidianMinor made their first contribution in #605

Full Changelog: v3.0.1-alpha.2...v3.1.0-alpha.1

What's Changed

• example: fix hashes example by @cmackenzie1 in #568
• chore: upgrade all dependencies by @cmackenzie1 in #569
• ci: update github actions to latest versions by @cmackenzie1 in #567
• message: Fix reuse of first segment by @matheusd in #556
• Fix build error on go1.23rc1 by @saschagrunert in #576

New Contributors

• @cmackenzie1 made their first contribution in #568
• @saschagrunert made their first contribution in #576

Full Changelog: v3.0.1-alpha.1...v3.0.1-alpha.2

What's Changed

• When examining annotations, check the value's tag. by @zenhack in #109
• sendCap: check for nil exports table/entries by @zenhack in #113
• V3 sender promise workaround by @zenhack in #114
• Don't panic when Payload is null. by @zenhack in #157
• Add a missing format argument by @zenhack in #164
• Fix some breakage in the regen.sh script. by @zenhack in #162
• Typed refcounting by @zenhack in #163
• Add option to use packed encoding in rpc.StreamTransport. by @lthibault in #161
• Update README.md for v3 by @lthibault in #170
• Add go module & set import path to capnproto.org/go/capnp/v3 by @lthibault in #169
• Added minor installation note regarding 'GO111MODULE' by @taufik-rama in #179
• Update the bundled schema to those included with capnp-c++ 0.9 by @zenhack in #181
• Fix issues that cause linters to complain. by @lthibault in #182
• CI: run agains Go 1.17 by @zenhack in #183
• Remove old build tags by @lthibault in #184
• Fix unsafe use of reflect.StringHeader/SliceHeader. by @lthibault in #186
• Add new internal/mpsc package. by @zenhack in #191
• Improve error handling in RPC package by @lthibault in #187
• Add infalliable variants of NewMessage() by @zenhack in #195
• Fix a bug where we were calling annotate() on the wrong error. by @zenhack in #197
• Minor formatting change in comment by @zenhack in #202
• Flow control by @zenhack in #198
• Cleanup: Stop passing around a superfluous []ClientState by @zenhack in #207
• Simplify how we determine whether to embargo by @zenhack in #212
• Add some helpers for acquiring locks by @zenhack in #210
• Expose pipelineClient & do something useful with its .Brand() by @zenhack in #211
• Support arbitrary client metadata, avoid linear seach in sendCap. by @zenhack in #208
• Handle incoming receiverAnswer cap descriptors. by @zenhack in #209
• Error client: return the error via Brand() by @zenhack in #215
• Add me & Louis to FUNDING.yml by @zenhack in #217
• Transport: don't require clearing the cap table. by @zenhack in #219
• sendCap: emit receiverAnswer when appropriate. by @zenhack in #213
• Support canonicalizing interface pointers. by @zenhack in #220
• Creating example directory with books and hashes examples from wiki by @frumioj in #204
• Get rid of server.Policy.AnswerQueueSize. by @zenhack in #222
• Replace getClosedSignal() with global closed channel. by @lthibault in #223
• Use generics for mpsc by @zenhack in #226
• Remove unused contextImport constant. by @zenhack in #227
• Use generics for list types. by @zenhack in #229
• Bugfix/unbounded send queue by @lthibault in #224
• Use the embed package to do less in mktemplates. by @zenhack in #228
• Don't block when queuing methods on *Server. by @zenhack in #225
• Fix linter warning due to discarded CancelFunc in mpsc_test by @lthibault in #230
• Lintfix. Explicitly assign value to List field in StructList. by @lthibault in #231
• Refactor readlimit_test.go to appease CI. by @lthibault in #233
• Fix compilation error and test on intel 32-bit by @Matherunner in #234
• Fix typo in comment. by @zenhack in #237
• Represent :Capability type as *capnp.Client. by @lthibault in #232
• flowcontrol.fixedLimiter: Swap in semaphore.Weighted. by @zenhack in #238
• Fix moar deadlocks by @zenhack in #243
• Get rid of unnecessary interface{ ... }. by @zenhack in #246
• Add typed wrapper for lists of capabilities. by @zenhack in #247
• Move Transport into its own package, and export transport.NewPipe by @zenhack in #252
• Remove Promise.Join() by @zenhack in #255
• Fix broken implemenation of .Ack() by @zenhack in #254
• Move packed out of internal. by @zenhack in #258
• Bugfix: don't wrap nil error with fmt.Errorf. by @lthibault in #262
• Export concrete arena types. by @lthibault in #263
• Return error from generator.defineInterface by @lthibault in #264
• Implement io.WriterTo for Message by @lthibault in #266
• Assorted clean-up tasks by @lthibault in #265
• Fix race conditions due to zero-copy semantics of pipe transport. by @lthibault in #261
• Remove redundant call to setAnswerQuestion by @zenhack in #250
• Client: hide pointer indirection. by @zenhack in #260
• Bugfix/nil exc check fails by @lthibault in #268
• Defend against nil-pointer panics in question.release by @lthibault in #269
• Don't mention now-deleted Promise.Join() method by @zenhack in #270
• Remove server.Policy. by @lthibault in #273
• Embed capnp.Client in generated interface types. by @zenhack in #276
• First steps towards generics by @zenhack in #274
• Remove pointless indirection in templates. by @zenhack in #277
• Clean up formatting, inefassign and misspellings. by @lthibault in #281
• Kill the struct wrapper around Client by @zenhack in #279
• Remove a couple uses of the *_List type aliases. by @zenhack in #278
• Run gofmt by @zenhack in #282
• Kill the struct wrapper around generated Struct types. by @zenhack in #283
• Get rid of the struct wrappers around list types. by @zenhack in #284
• Add client methods to interfaceClient template by @lthibault in #285
• Add IsValid method to list types. by @lthibault in #287
• Fix 271 by @zenhack in #288
• .gitignore: ignore test coverage profiles by @zenhack in #290
• Add a .Release() method to FlowLimiter. by @zenhack in #291
• Export mpsc by @lthibault in #293
• Clean up import rendering in codegen. by @lthibault in #286
• Simplify packed encoder. by @lthibault in #295
• Import docs from the wiki into a docs/ directory. by @zenhack in #300
• Update Working-with-Cap'n-Proto-Types.md by @TheApeMachine in #302
• Reject pipelined calls when PlaceArgs returns an error. by @lthibault in #303
• Fix incorrect docs for Client.Release(). by @zenhack in #313
• Fix error message in panic. by @zenhack in #312
• Get rid of an unnecessary slice in Promise. by @zenhack in #310
• Delete clearCapTable() by @zenhack in #309
• Clarify comments by @zenhack in #308
• Fix deadlock by @zenhack in #316
• call messages: let th...

What's Changed

• When examining annotations, check the value's tag. by @zenhack in #109
• sendCap: check for nil exports table/entries by @zenhack in #113
• V3 sender promise workaround by @zenhack in #114
• Don't panic when Payload is null. by @zenhack in #157
• Add a missing format argument by @zenhack in #164
• Fix some breakage in the regen.sh script. by @zenhack in #162
• Typed refcounting by @zenhack in #163
• Add option to use packed encoding in rpc.StreamTransport. by @lthibault in #161
• Update README.md for v3 by @lthibault in #170
• Add go module & set import path to capnproto.org/go/capnp/v3 by @lthibault in #169
• Added minor installation note regarding 'GO111MODULE' by @taufik-rama in #179
• Update the bundled schema to those included with capnp-c++ 0.9 by @zenhack in #181
• Fix issues that cause linters to complain. by @lthibault in #182
• CI: run agains Go 1.17 by @zenhack in #183
• Remove old build tags by @lthibault in #184
• Fix unsafe use of reflect.StringHeader/SliceHeader. by @lthibault in #186
• Add new internal/mpsc package. by @zenhack in #191
• Improve error handling in RPC package by @lthibault in #187
• Add infalliable variants of NewMessage() by @zenhack in #195
• Fix a bug where we were calling annotate() on the wrong error. by @zenhack in #197
• Minor formatting change in comment by @zenhack in #202
• Flow control by @zenhack in #198
• Cleanup: Stop passing around a superfluous []ClientState by @zenhack in #207
• Simplify how we determine whether to embargo by @zenhack in #212
• Add some helpers for acquiring locks by @zenhack in #210
• Expose pipelineClient & do something useful with its .Brand() by @zenhack in #211
• Support arbitrary client metadata, avoid linear seach in sendCap. by @zenhack in #208
• Handle incoming receiverAnswer cap descriptors. by @zenhack in #209
• Error client: return the error via Brand() by @zenhack in #215
• Add me & Louis to FUNDING.yml by @zenhack in #217
• Transport: don't require clearing the cap table. by @zenhack in #219
• sendCap: emit receiverAnswer when appropriate. by @zenhack in #213
• Support canonicalizing interface pointers. by @zenhack in #220
• Creating example directory with books and hashes examples from wiki by @frumioj in #204
• Get rid of server.Policy.AnswerQueueSize. by @zenhack in #222
• Replace getClosedSignal() with global closed channel. by @lthibault in #223
• Use generics for mpsc by @zenhack in #226
• Remove unused contextImport constant. by @zenhack in #227
• Use generics for list types. by @zenhack in #229
• Bugfix/unbounded send queue by @lthibault in #224
• Use the embed package to do less in mktemplates. by @zenhack in #228
• Don't block when queuing methods on *Server. by @zenhack in #225
• Fix linter warning due to discarded CancelFunc in mpsc_test by @lthibault in #230
• Lintfix. Explicitly assign value to List field in StructList. by @lthibault in #231
• Refactor readlimit_test.go to appease CI. by @lthibault in #233
• Fix compilation error and test on intel 32-bit by @Matherunner in #234
• Fix typo in comment. by @zenhack in #237
• Represent :Capability type as *capnp.Client. by @lthibault in #232
• flowcontrol.fixedLimiter: Swap in semaphore.Weighted. by @zenhack in #238
• Fix moar deadlocks by @zenhack in #243
• Get rid of unnecessary interface{ ... }. by @zenhack in #246
• Add typed wrapper for lists of capabilities. by @zenhack in #247
• Move Transport into its own package, and export transport.NewPipe by @zenhack in #252
• Remove Promise.Join() by @zenhack in #255
• Fix broken implemenation of .Ack() by @zenhack in #254
• Move packed out of internal. by @zenhack in #258
• Bugfix: don't wrap nil error with fmt.Errorf. by @lthibault in #262
• Export concrete arena types. by @lthibault in #263
• Return error from generator.defineInterface by @lthibault in #264
• Implement io.WriterTo for Message by @lthibault in #266
• Assorted clean-up tasks by @lthibault in #265
• Fix race conditions due to zero-copy semantics of pipe transport. by @lthibault in #261
• Remove redundant call to setAnswerQuestion by @zenhack in #250
• Client: hide pointer indirection. by @zenhack in #260
• Bugfix/nil exc check fails by @lthibault in #268
• Defend against nil-pointer panics in question.release by @lthibault in #269
• Don't mention now-deleted Promise.Join() method by @zenhack in #270
• Remove server.Policy. by @lthibault in #273
• Embed capnp.Client in generated interface types. by @zenhack in #276
• First steps towards generics by @zenhack in #274
• Remove pointless indirection in templates. by @zenhack in #277
• Clean up formatting, inefassign and misspellings. by @lthibault in #281
• Kill the struct wrapper around Client by @zenhack in #279
• Remove a couple uses of the *_List type aliases. by @zenhack in #278
• Run gofmt by @zenhack in #282
• Kill the struct wrapper around generated Struct types. by @zenhack in #283
• Get rid of the struct wrappers around list types. by @zenhack in #284
• Add client methods to interfaceClient template by @lthibault in #285
• Add IsValid method to list types. by @lthibault in #287
• Fix 271 by @zenhack in #288
• .gitignore: ignore test coverage profiles by @zenhack in #290
• Add a .Release() method to FlowLimiter. by @zenhack in #291
• Export mpsc by @lthibault in #293
• Clean up import rendering in codegen. by @lthibault in #286
• Simplify packed encoder. by @lthibault in #295
• Import docs from the wiki into a docs/ directory. by @zenhack in #300
• Update Working-with-Cap'n-Proto-Types.md by @TheApeMachine in #302
• Reject pipelined calls when PlaceArgs returns an error. by @lthibault in #303
• Fix incorrect docs for Client.Release(). by @zenhack in #313
• Fix error message in panic. by @zenhack in #312
• Get rid of an unnecessary slice in Promise. by @zenhack in #310
• Delete clearCapTable() by @zenhack in #309
• Clarify comments by @zenhack in #308
• Fix deadlock by @zenhack in #316
• call messages: let th...

• Make tags usable with Go modules (#150)
• Add option in encoding/text to indent output (#143)
• Fix issue where capnpc-go generated files depend on capnp compile invocation (#145)
• Fix incorrect error check in schemas (#147)

Fixes security issue #137

Fixes #123

Fixes the Bazel build

• Add capnp.Canonicalize function that implements the canonicalization algorithm. (#92)
• Zero-sized struct pointers are now written with an offset of -1 to distinguish them from a null pointer. (#92)
• Better support for alternate Arena implementations
  • Document Arena contract in more detail
  • Permit an Arena to have a single empty segment in NewMessage
• Arena allocation optimizations: both SingleSegment and MultiSegment now gradually ramp up the amount of space allocated in a single allocation as the message grows. This is similar to how built-in Go append function works. Workloads with medium to large messages should expect a decrease in number of allocations, while small message workloads should remain about the same. Please file an issue if you encounter any performance regressions. (#96)
• Fix double-far pointer logic. (#97) This is a long-standing bug with reading and writing multi-segment messages. I've added broader test coverage for multi-segment messages and far pointers, so it's unlikely that such a failure will persist in the future.
• Accessing a field in a union when that field is not the one set now results in a panic. (#56) This is intended to help uncover programming mistakes where a union field is accessed without checking Which(). Prior to this change, unset union field accessors would silently return garbage.
• Struct.Address() and List.Address() are now deprecated. Especially for List, where the address is at the beginning of the data, not the composite literal, the return value is not well-defined and its not clear how to use it. Use capnp.SamePtr if you need to check for pointer reference equality. File an issue if you're using Address() for something else.